The following study suggests that whilst macro and micronutrients are conducive to plant growth it is water that has the greatest impact on, and is the most crucial regulator of plant growth and, when regulated, can lead to the highest growth spurt. The author of this study, therefore, wished to test the effects of a pellet, one of whose elements originated from a microorganism, powder that sourced from a microorganism, and water. The hypothesis was that whilst each would contribute to plant growth, the greatest amount of growth would emerge from the water and that even thoguh all plants in each of the other 2 studies initially received the same amount of water in their feeding / growth process, addition of water to the experimental study of the Brassica rapa would -- due to water's enhanced absorption capacities -- evidence enhanced plant growth.. Formulating these hypotheses in a scientific manner: the positive hypothesis was the following:

1. Water would lead to the greatest amount of growth

The null hypothesis, on the other hand, asserted that:

1. No difference in growth would be found between the properties of the water and the properties of the powder or the pellet.

Contributions of this study would be the following:

Firstly, we would be able to determine whether it is water or the macronutrient or the micronutrient that is the greatest producer of growth to the plant. If it were water that indeed were the case, scientist would be able to adjust the level of water in gnotobiotic environments so that plants can achieve the same level of height there as they can in raw environments....

Scientists may also employ more water in their fertilizers (of course, within reason) to regulate growth. Finally, knowledge of this research would be interesting for theoretical interests too since whilst it is known that Sixteen chemical elements are known to be contributive to a plant's growth, and growth-enhancing differences have as yet been undistinguished, discovering that it is water that conduces optimum growth through its capacity to be the easiest to absorb develops our knowledge on the subject a bit further.
Reference

Environmental factors effecting growth: Water and humidity extension.oregonstate.edu/mg/botany/env_factors.html

Higa, T. & Wididana, GN. (1991) The concept and theories of effective microorganisms. Proceedings of the first international conference http://www.infrc.or.jp/english/KNF_Data_Base_Web/PDF%20KNF%20Conf%20Data/C1-5-015.pdf

Kloeeper, JW & Schroth, MN (1981) Plant growth promoting rhizobacteria under gnotobiotic conditions. Phytopathology, 71, 642-644.

Millhouse, DE & Munneke, DR (1979) Increased growth of Nicotinana glyutinosa as partially related to accumulation of ammonium-nitrogen… Phytopathology, 69, 793-797

N. Carolina Department of Agriculture Plant nutrients www.ncagr.gov/cyber/kidswrld/plant/nutrient.htm

Raabe, RD, Hurlimann, JH., & Sciaroni, RH (1972). Effect of soil fungicide treatments on carnation flower production. Florida Nursery, 9-10.

Salt, GH (1978) The increasing interest in minor pathogens in Soil borne plant pathogens. Eds. B. Schippers and W. Gams, Academic Press; NY